The world has lost more than one quarter of its land-dwelling insects in the past 30 years, according to researchers whose big picture study of global bug decline paints a disturbing but more nuanced problem than earlier research.
Rutgers University researchers have received U.S. government clearance for the first saliva test to help diagnose COVID-19, a new approach that could help expand testing options and reduce risks of infection for health care workers.
China cracked down on the sale of exotic species after an outbreak of a new virus in 2002 was linked to markets selling live animals. Now another coronavirus is spreading through China, prompting calls to permanently ban the sale of wildlife.
Women who use certain types of hormones after menopause still have an increased risk of developing breast cancer nearly two decades after they stop taking the pills, long-term results from a big federal study suggest.
Already pressured by the mining and forestry industry, and other development that encroach on grazing land, Sami herding communities fear climate change could mean the end of their traditional lifestyle.